Malthusian growth problem help

The biomass of a certain Malthusian population has been increasing at a steady 6% per decade. What is the ANNUAL percent increase of this population?

help! i got 0.6% which isnt right

(1+r)^10 = 1.06

(1+r) = 1.06^(1/10) = 1.0058439

r = .0058439 = 0.58439% <----------